Finnegan, a Fayetteville, N.C. native, spent his first six seasons with the Titans and was selected to the Pro Bowl in 2008. After his final year in Tennessee in 2011, he spent two years with the St. Louis Rams before joining the Miami Dolphins in 2014.
Finnegan’s career totals include 111 starts, 18 interceptions, 86 passes defensed and 645 tackles. He adds depth to a secondary that has been without starting cornerback Charles Tillman (knee) for the past two games.
Aiken was signed as an emergency backup for last Thursday’s game against the Dallas Cowboys but was inactive.